We're heavy on the speculative side with this, but Auto Express is saying that "Rumours of Ferrari 458 Scuderia emerge, with possible debut at the Frankfurt Motor Show." To be clear, that's the possible debut of a car that is still only a rumor, and we're not sure it will be called "Scuderia," either - remember, the track-day 360 was the Challenge Stradale. Admittedly, the rumor of its existence is strong and there is plenty of precedent: Ferrari has introduced some model or variant of its mid-engined V8 sports car at the last three Frankfurt Motor Shows.

Car and Driver went into a great deal of indepth speculation about the coming, track-focused 458 in a piece back in May, and also predicted it would be shown first in Frankfurt. According to C/D we can expect "roughly 600" horsepower and 9,300-rpm redline - up 300 rpm from standard – a faster shifting seven-speed gearbox, a dry weight under 2,900 pounds thanks to "exotic compound materials" and a "slightly stripped interior," less exhaust silencing, uprated carbon-ceramic brakes and active aerodynamics on the rear diffuser.

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I'm kind of scared about the official details of this car, because I might be tempted to sell my organs, belongings, soul, etc. I was thoroughly impressed with the sensation from just being in the passenger seat of an F430 16M Scuderia a few years back, so I can only imagine how thrilling this car will be.

So much effort and tweaking to get just 30-40hp. Mclaren and its turbo, all they had to do is change one parameter in their code (max boost) and voila, 25 extra hp....change the param again and comes the HS with 75 extra hp..change it again and comes the P1 with its 135 extra hp.

It's not only about getting power. It's about handling as well. The 458 has generally been favored over the MP4-12C in that department (even by the Brits), so the significant weight reduction is going to make it an even better handling car, despite the modest bump in power... which will still translate to it being much quicker on paper and even better in the fun department.
If you've followed the prior "special" Ferrari models, they all have modest bumps in power (the 360 Challenge Stradale and the F430 Scuderia both added ~25 hp), so it's not as if "just 30-40 hp" is far below expectations. But the aforementioned cars were even better behind the wheel.

yeah..obviously, that's why they charge you a fortune to strip the car for you. But if it is just a stripped interior, people might not want to pay that big increase in price (obviously there are also cf panels and plastic windows in the weight reduction process).
Some of these cars, they just can't squeeze much more power and still make it street legal. If they forgo passing emission, they could easily crank out more power, just look at the FXX and FXX Evoluzione, getting 200hp more out of the same engine compared to the Enzo. And Lamborghini squeezing 20hp out of the same engine after so many iterations of Gallardo.

Ferrari road cars won't always get the best lap times (they try their hardest, as Chris Harris explains, to convince you otherwise), but you had better believe that they are among the most visceral automotive experiences you can get your hands on. I've driven a 360 and a 458 and they were greater than my childhood dreams could imagine.
For me, the most disappointing thing about the MP4-12C isn't that it drives funny as journalists decried, but that it doesn't give you sensory overload like the Fezza does. It's also not the all-out performance statement that the F1 was back in 1994. The turbos probably take away half of the 12C's exhaust volume.

Oh...how Ferrari Spins...read that infamous Chris Harris article? I don't know how much of the lap times I can actually believe with ferrari... but who knows? I do love the 458... I'd take a black series SLS AMG though

12C has been demolished by all the testers in the world while the 458 is being vaunted as one of the most fun to drive car ever. So McLaren can needs to get back to the drawing and design a car instead of of a computer.